HTTP: Citrix NetScaler ADC and NetScaler Gateway Out-of-Bounds Read

This signature detects attempts to exploit a known vulnerability against Citrix NetScaler. A successful attack can lead to elevation of privilege and arbitrary code execution.

References

CVE: CVE-2026-3055

Short Name
HTTP:CTS:CITRIX-NETSC-ADC-OOB
Severity
Critical
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
ADC CVE-2026-3055 Citrix Gateway NetScaler Out-of-Bounds Read and
Release Date
04/30/2026
Supported Platforms

srx-branch-12.3

srx-branch-19.3

vsrx3bsd-19.2

vsrx3bsd-19.4

srx-branch-19.4

vsrx-19.4

srx-19.4

srxevo-25.4

vsrx-26.2

srx-26.2

vsrx-12.3

srx-branch-26.2

vsrx3bsd-26.2

srx-12.3

vsrx-19.2

srx-19.3

Sigpack Version
3904
False Positive
Unknown

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